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Miscellaneous—Troubleshooting
Continued on next page KR46761,00013A2 -19-22SEP16-2/5
Symptom Problem Solution
Slow cranking speed (poor electrical
connection)
Clean and tighten battery and starter
connections.
Incorrect engine oil
Drain crankcase and rell with correct
oil.
Air lters restricted or dirty Replace air lter elements.
Starter Repair or replace starter. See an
authorized Hitachi dealer.
Engine Knocks, Runs Irregularly,
or Stops
Air lters restricted or dirty Replace air lter elements.
Fuel lters restricted Replace lters. Bleed air. Clean fuel
tank inlet screen. See Bleed Fuel
System. (Section 4-1.)
Fuel lter not installed correctly Install new lter and O-ring. Ensure
proper O-ring seal. Bleed air. See
Bleed Fuel System. (Section 4-1.)
Air in fuel system Bleed air. See Bleed Fuel System.
(Section 4-1.)
Contaminated fuel Drain fuel tank. Replace primary fuel
lter and water separator. Replace
nal fuel lter. Bleed air. Add
clean fuel. See Bleed Fuel System.
(Section 4-1.)
Low crankcase oil level Fill crankcase to proper oil level.
Coolant temperature low Check for proper thermostat
temperature and operation. Replace
if necessary.
Cold oil Perform hydraulic warm-up
procedure. See Cold Weather
Warm-Up. (Section 2-3.)
Injection pump
See an authorized Hitachi dealer.
Engine speed control system
See an authorized Hitachi dealer.
Excessive Fuel Consumption Air lters restricted or dirty Replace air lter elements.
Incorrect fuel Drain fuel tank and rell with correct
fuel.
4-3-3
112321
PN=328
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